Merge pull request #401 from input-output-hk/mgalazyn/fix/add-check-f…

…or-permissions-in-key-gen

#213 Add check for keys permissions in the test in governance drep key-gen

cardano-cli/cardano-cli.cabal

@@ -330,6 +330,7 @@ test-suite cardano-cli-test
 
 test-suite cardano-cli-golden
   import:               project-config
+                      , maybe-unix
 
   hs-source-dirs:       test/cardano-cli-golden
   main-is:              cardano-cli-golden.hs

cardano-cli/test/cardano-cli-golden/Test/Golden/Governance/DRep.hs

@@ -1,8 +1,20 @@
+{-# LANGUAGE CPP #-}
 {- HLINT ignore "Use camelCase" -}
 
 module Test.Golden.Governance.DRep where
 
-import           Control.Monad (void)
+#if !defined(mingw32_HOST_OS)
+#define UNIX
+#endif
+
+import           Control.Monad
+
+#ifdef UNIX
+import           Data.Bits ((.&.))
+import           GHC.Stack (withFrozenCallStack)
+import           Numeric (showOct)
+import           System.Posix.Files (fileMode, getFileStatus)
+#endif
 
 import           Test.Cardano.CLI.Util (execCardanoCLI, noteInputFile, noteTempFile, propertyOnce)
 
@@ -30,6 +42,18 @@ hprop_golden_governanceDRepKeyGen =
     H.assertFileOccurences 1 "Delegate Representative Verification Key" verificationKeyFile
     H.assertFileOccurences 1 "Delegate Representative Signing Key" signingKeyFile
 
+#ifdef UNIX
+    vrfMode <- retrievePermissions verificationKeyFile
+    sgnMode <- retrievePermissions signingKeyFile
+
+    vrfMode === "600"
+    sgnMode === "600"
+    where
+      retrievePermissions path = withFrozenCallStack $ do
+        mode <- H.evalIO $ fileMode <$> getFileStatus path
+        pure $ showOct (mode .&. 0o777) "" -- we only need the 3 lowest octets here
+#endif
+
 hprop_golden_governance_drep_id_bech32 :: Property
 hprop_golden_governance_drep_id_bech32 =
   propertyOnce . H.moduleWorkspace "tmp" $ \tempDir -> do